41 lines
1.6 KiB
HTML
41 lines
1.6 KiB
HTML
<!doctype html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<iframe id="i" src="/common/blank.html"></iframe>
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<script>
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promise_test(async () => {
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await new Promise(resolve => window.onload = resolve);
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i.contentWindow.navigation.addEventListener("navigate", e => {
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e.intercept();
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});
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const returnValueFinished1 = i.contentWindow.navigation.navigate("?1").finished;
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const transition1 = i.contentWindow.navigation.transition;
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const transitionFinished1 = transition1.finished;
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assert_true(returnValueFinished1 instanceof i.contentWindow.Promise);
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assert_true(transition1 instanceof i.contentWindow.NavigationTransition);
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assert_true(transitionFinished1 instanceof i.contentWindow.Promise);
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assert_not_equals(returnValueFinished1, transitionFinished1);
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// Ensure the getters aren't generating new objects each time.
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assert_equals(i.contentWindow.navigation.transition, transition1);
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assert_equals(i.contentWindow.navigation.transition.finished, transitionFinished1);
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assert_equals(await transitionFinished1, undefined);
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// Ensure stuff does change after another navigation.
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const committed2 = i.contentWindow.navigation.navigate("?2").committed;
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const transition2 = i.contentWindow.navigation.transition;
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const transitionFinished2 = transition2.finished;
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assert_not_equals(transition2, transition1);
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assert_not_equals(transitionFinished2, transitionFinished1);
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await committed2;
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}, "Realm and identity of the navigation.transition object and its finished promise");
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</script>
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